java Best architecture for highload system

For your specific problem with packages I would recommend to consider a key-value store for your position data. Those could scale to billions of insertions and retrievals per day . Scalable forms of data flows and processing.

highload architecture

For example event driven architectures using distributed message- / event-queues. For example different forms of distributed NoSQL like key-value stores, wide-column stores, in-memory databases and novel scalable SQL stores. Connect and share knowledge within a single location that is structured and easy to search. Unflagging dianamaltseva8 will restore default visibility to their posts.

This supports quick turn around iterative development. Keys and a pointer to which shard a users’ data can be found on. Unflagging smartym will restore default visibility to their posts. Memcache will independently distribute the load between all the servers by using a constant hashing algorithm. Use the cloud to host new projects, as it allows them to reduce the cost of the server, facilitate their management, and easily deploy applications. That is, where you can move away from the requirements.


I remember installing from scratch about 100 servers in less then an hour (and we were not even using systemimager/flamethrower for that). Also take a look into GUI monitoring daemon/tool (si_monitor/si_monitortk). The database part of BCP will indeed be interesting. We do of course already have BCP in terms of storing and serving photos, so we balance traffic between many different datacenters for Be able to handle peak loads up and down the stack. Be sensitive to the demands of exponential growth.

Cvsup for distributing and updating collections of files across a network. There is no big deal to create an application, that proportionally scales across servers as traffic flow grows. Stateless everything, load balancing, 90% cached, a reliable content delivery network, and so on – and you have a high load architecture. Most often, it’s the first node which is under load is the database.

highload architecture

This will require a single repository for all sessions. Use replication to synchronize data from one server to another. After configuration, you should change the database IP address in the application to the new server.

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When developing a software system, make sure it will be able to easily withstand high loads. Even if your project is rather small, in some moment you may need to scale. It seems storing your images in database might really slow down the site. Once unsuspended, smartym will be able to comment and publish posts again.

When developing large-scale web solutions, focus on flexibility as it will enable you to easily make changes and extensions. Flexibility, no preliminary planning of all aspects, is the most important characteristic of any fast-growing software system. Both Java and .Net stack can support most of your needs. Also look at other solutions such as memcached, Solr, etc. that are designed to solve specialized problems.

Calculate the amount of data, the rate of their growth, where are the critical moments. We need to know the numbers that we expect. This way we will find out the bottlenecks. Denormalization — We intentionally duplicate data and introduce redundancy to quickly show data to the user. It is difficult when we write something but we can wait a little while we write.

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It’s difficult to predict the audience size for the years to come, so it’s better to move focus to scalability. The same goes for the application architecture. Gradual solutions are the basis for successful software development. So, you should take one step behind and think – which part of the system causes a problem under load?

highload architecture

More users means more content, more content means more connections, more connections mean more usage. Build into the architecture mechanisms (config flags, load balancing, etc.) with which you can deploy new hardware easily into production. Create clear levels of abstraction between database work, business logic, page logic, page mark-up and the presentation layer.

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I was happy to read Flickr uses SystemImager for deployment. I ‘m a big advocate of this software – it’s a perfect combination of simpleness and functionality. Built around well-known tools such as rsync or TFTP/DHCP.

  • It’s difficult to predict the audience size for the years to come, so it’s better to move focus to scalability.
  • If it’s a database, choose a high-scalable one before starting the project.
  • Farm1 – Obviously the farm at which the image is stored.
  • No happy customers – no success and profit.
  • Or you may need to add various features.

After all, we must write 100 million identifiers. The Microsoft and Java stacks are comparable in performance terms. Whether you can achieve 500,000 transactions per day depends more on what those transactions are doing and whether you get your system architecture right. When developing large-scale web applications, the main focus should be made on flexibility. Having a flexible architecture, you will be able to make changes and extensions much easier, which means reduced costs, time, and efforts. Keep in mind, that flexibility is the most important characteristic of any fast-growing software system.

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If the average number of tasks in the queue will grow, increase the number of servers to balance the load. Hereafter, separate the web server, which allocation to a separate node will allow to leave more resources for the application. In speaking of the example with PHP, you should configure the product deployment to both the Nginx server and the PHP server, representing backend. This approach will help you save time and reduce development costs.

If smartym is not suspended, they can still re-publish their posts from their dashboard. Once unpublished, all posts by smartym will become hidden and only accessible to themselves. I was expecting an article about a high load architecture. Instead i found a post about a high load infrastructure. When the load increases, a web application starts working more slowly.

Database migration

Both technologies will let you build your system. You should really choose the one you are better familiar with. Beyond that, your developers’ expertise, familiarity and availability of local resources is your best indicator. The only real differentiating feature would be cost.

It’s a negotiation between the two parties. File uploading and processing usually occurs on the backend side. Having several backends is totally inconvenient and inefficient, as software engineers have to remember on which backend they upload each file. Task queues enable to asynchronously perform heavy operations, without slowing down the main application. While the queue server will be receiving tasks from the web solution, other servers will be handling them.

There was a problem preparing your codespace, please try again. We’re a place where coders share, stay up-to-date and grow their careers. Are you sure you want to hide this comment? It will become hidden in high load systems your post, but will still be visible via the comment’s permalink. Defining and resolving performance issues in advance and without drastically increasing infrastructure costs – this is high load all about.

Both .NET and Java have connectors available to work with these systems. I would personally prefer .Net platform for reasons such as better tooling, language support, ASP.NET MVC. Right now the only solution I can think of is producer-consumer pattern. Like having one process selecting all records from parcel table in the infinite loop and then distribute fetching data task with something like Celery. Once unsuspended, dianamaltseva8 will be able to comment and publish posts again. Once suspended, dianamaltseva8 will not be able to comment or publish posts until their suspension is removed.

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